Wash-kettle furnace



July 29; 1924.

K.,$. MARTIN WASH' KETTLE Fummc Filed Jan. 18. 1925 @neuneu Patented July 29, 1924.

T E D T 'l' f,

KARTER S. MARTIN, OF TARRANT CTY. ALABAMA.

WASH-KETTLE FUBNACE.

Application filed January 18, 1923. Serial No. 613,373.

To all whom t may concern.'

Be it known that I, KARTER S. MARTIN, a citizen of the United States of America. residing at Tarrant City, in the county of Jefferson and State of Alabama., havein` vented certain new and useful Improvements in Wash-Kettle Furnaces, of which the following is a specification.

My invention relates to a new and irnproved type of furnace for the heating of wash kettles which are customarily in the form of cast iron pots.

More particularly, the object of my invention is to design a sheet metal furnace of use with any available fuel and with or without a grate, and which is designed to facilitate the kindling of the Hre, the introduction of sufficient fuel to insure the requisite heat, and the utilization of tho heat generated in the most eHicient manner.

A further object' of my invention is to design a sheet metal wash kettle furnace preferably having the shape of a truncated cone with a lateral fire box extension on. one side and a Hue connection on the other, thus enabling the Hre to be kindled under and at one side of the kettle and requiring y 'ing under and about the kettle to rise to it to pass under and entirely around the kettle in its How to the Hue, the furnace being adjustable to different sized kettles.

Myinvention further contemplates providing the fire box with a door, draft damper and other means to effectively control and regulate the Hre, and also provid` ing a removable stove top to take the place of the kettle so that the furnace can be used as a stove.

My invention further comprises the novel details of construction and arrangements of parts, which in their preferred embodiment only are illustrated in the accompanying drawings, in which Fig. is a top plan view of the furnace with the wash kettle omitted.

Fig. 2 is a side elevation of Fig. 1, with the removable stove top shown preparatory to being placed Yin the furnace jacket top.

Fig. 3 is a cross-sectional view on the line 3 3 of Fig. 1, showing the wash kettle and grate in position and the top removed.

Similar reference numerals refer to similar parts throughout ,the drawings.

I have shown my invention especiallyv adapted for use with the usual wash kettle which is in the form of a cast iron pot l having an out-turned top lip or rim 2 which is adapted to rest on the furnace casing or jacket 3, which is in` the form of a truncated cone fabricated of suitable sheet metal which can be readily and cheaply out, bent and riveted to the shape shown and which will have ample strength for supporting the kettle. At one side of the jacket l provide a lateral Hre box extension 4 which is closed overhead and extends down to the bottom level of the jacket. This Hre box also is preferably fabricated of the same sheet metal as the jacket and has its outer end wall provided with a hinged door 6 having a suitable latch 7 and below the door` are a series of draft holes 8 which are controlled by a hinged damper 9 operated by a crank 10. On the side of the acket 3 opposite to the'iire box l provide an opening which is enclosed by a Hue connection ll, which connection has a Hat top provided with a nipple 12 to receive a stack or Hue pipe 13. rlheopening in the jacket to the Hue connection is elongated horizontally and is disposed close to the top `edge of the jacket so as to require the products of combustion after passthe top of the jacket before escaping to the Hue. y

I mount on the inside wall of the jacket and Hre box a plurality of angled brackets or clips 14 which have their upper inturned ends lying in a horizontal plane between the draft holes 8 and the lower edge of the door. This enables me to insert a grate 15 conforming in shape approximately to the horizontal cross-section through the jacket and fire box but being of sufficiently smaller width and length to enable the grate to be inserted downwardly through the tcp opening of the jacket and dropped into place, when'required. 1When the furnace is to be operated on the ground or on a suitable fuel supporting surface, the grate, if desired, can be dispensed with, but the grate can be furnished at comparatively small expense and the furnace converted by its use for service under any conditions. The fire box 4: is pro-vided about its jacket-engaging end with an out-turned Hange 16 which is riveted or bolted to the jacket 3, the lower rivets or bolts being disposed also to engage and support grate brackets, and in like manner the lower rivets or bolts 17 connecting the end g2 reoassv wall S with the side oi? the fire bonY et can be utilized to support the grate brackets. By this arrangement it is only necessary to add a single rivetkor bolt below the flue connection to support a great bracket at that point, and ample support will be provided for the grate without appreciable increase in cost of the furnace.

Having assembled the furnace in the manner described, the boiler kettle is set down into the open top of the jacket 3 with its top .flange 2 resting on and supported by the top ol the jacket and with its bottom vsupported sufficiently above the level ot' the grate to permit the tire to be thrust and l uned thereunder. The lire burning` in the tere bof; and under the kettle will produce products ot combustion which rise and How under and entirely about the kettle and pass oil' through the top flue opening and can be conducted o'l'l" by a smoke stack or flue, if desired.

To enable the furnace to be adaptedto kettles of different sizes, the jacket is formed two halt' sectionsdivided on a Vertical plane and the edges 19 of the sections are given substantial overlap on each side of the furnace. The langes are each provided with two or more vertical series of bolt or rivet holes 19 and by setting the bolts or rivets in thedesired holes the acket can be adjusted to the desired size, within prescribed limits, and the open holes 2O will all be lapped so no llame can escape therethrough.

IVhen not needed for heating a wash kettle, a stove top I8 may be placed on top of the jacket to close it overhead and permit the furnace to be used as a cooking or heating stove; or the top can be used over the kettle when the latter is in service.

Though I have described with great particularity the details of the embodiment ci' the invention herein shown, it is not to be construed that I am limited thereto, 4as changes .in arrangement and substitution of equivalents may be made by those skilled in the art without departing from the invention as dened in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Let` ters Patent, is r- I. A kettle furnace comprising a substantially cylindrical downwardly flaring metal jacket. adapted to rest on the ground, a combustion chamber forming an extension at one side otrsaid jacket and opening unobstructedlykthereinto, said jacket being free of ballies or obstructions interfering with the products ot combustion, a top outlet tor said products of 'combustion at the top of said jacket on the opposite side from the combustion chamber, and a llue having an enlarged base into which said outlet. opens.

A kettle furnace of the character described in claim l, in which said jacket is formed in vertical half sections lapped at their meeting edges substantially midway between the outlet flue and combustion chamber and having a series ot holes for the adjustment oft the diameter of the jacket.

A kettle furnace in accordance with claim l, in which the combustion chamber forms a continuation orp the base portion of the jacket and rests therewith on the ground, there being grate supports carried by the jacket and combustion chamber, and a grate mounted thereon and extending under a kettle mounted in the j aoket.

In testimony whereof I atlix my signature.

KARTER s. MARTIN. Witness:

Nonni VVELsH. 

